Checking the second feedback

The aim of the check is to compare differences of both position signals and to make sure that both measure the same distance and count in the same direction.

For this purpose it is necessary either to move the axis with feedback 1 or to move it manually. To easily compare the values, they can be inserted into the Watch Window:

The absolute values of both feedbacks are different. Compare only differences: note the values and move the axis by a defined distance. Read the new values and determine the differences for both feedbacks.

Both counted in the same direction? If not, the counting direction for feedback 2 can be inverted:

Please note: if the encoder has a digital and an analog channel, as in the example, you have to ensure that both channels count in the same direction. If this is not the case, the position of the encoder will change after the restart.

If both feedbacks have counted in the same direction but the number of counted increments differs, please check the settings in P-0-0180 (Signal periods per rotation, Length per Signal period).